Here is the full list of all 44 Diaries of a Spaceport Janitor achievements.
sell a common spellswatch
get the first tablet piece
start the day poor, end it poorer
complete one day
eat an item off the ground
get your luck index below -100
get cursed
buy river weevils
complete one week
get a tablet piece from Rhiande
return to the sewerdungeon
transfer the skull curse
finish the game
collect every trading card
incinerate 100 items
get your luck index over 100
get your luck index over 500
get your luck index below -666
lose 200 MC in one day
gain 200 MC in one day
incinerate 50 pools of vomit
play 10+ minutes every (real-world) day, 9 days in a row
stay out late on Theday
sell an item for more than 50 credits
get mugged 3x in one day
trade with Shifty Sallamot
sell an uncommon spellswatch
sell a rare spellswatch
sell a mythic spellswatch
peruse the market's wares
feed 5 dirt to dirt girl
stay inside all day
worship every goddess in the same day
dank....
incinerate one of each tier-one currency
parkour out of the map
drink poison
explore every area
get a random achievement from the merchant
lose all your achievements
collect enough blue gems